Chemistry Crossword

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Across
  1. 3. discovered the nucleus using the Gold Foil Experiment
  2. 5. columns on a periodic table
  3. 6. smallest part of a covalent bond
  4. 9. free electrons that are able to bond with any atom that surrounds it
  5. 10. combination of two or more substances that can be seperated through physical means
  6. 11. identified the neutron
  7. 13. ion with a positive charge
  8. 14. ion with a negative charge
  9. 16. ability to attract electrons
  10. 17. solid formed from two solutions
  11. 19. made atomic theory
Down
  1. 1. rows on a periodic table
  2. 2. two or more elements that are bonded chemically
  3. 4. means of seperating a mixture by trapping larger particles on a piece of paper
  4. 7. chemical reaction where energy is absorbed
  5. 8. means of seperating a mixture by using boiling points
  6. 12. the same element with different masses
  7. 13. bond caused by Attraction between a positve ion and negative ion
  8. 15. arranged the periodic table by atomic # instead of by mass
  9. 18. first person to come up with accepted periodic table